Only warn for ioncube <4.0.9, fixes composer/composer#395
Only warn for ioncube <4.0.9, fixes composer/composer#395

composer/getcomposer.org,composer/getcomposer.org,johnstevenson/getcomposer.org,johnstevenson/getcomposer.org,composer/getcomposer.org,johnstevenson/getcomposer.org